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1NZ8合金在360℃锂水和400℃蒸汽中腐蚀后氧化膜的拉曼光谱分析(英文)显示文摘通过拉曼光谱法研究NZ8合金在360℃锂水和400℃蒸汽的静态高压釜中腐蚀后氧化膜的晶体结构。结果表明,NZ8合金的氧化膜主要由单斜氧化锆组成,其中包括少量畸变的四方氧化锆。随着腐蚀时间的延长,氧化膜中平均四方氧化锆含量不断减少,单斜氧化锆含量不断增加,四方氧化锆在向单斜氧化锆转变。从氧化膜/基体界面到氧化膜外表面,四方氧化锆含量不断减少,界面处四方氧化锆含量最高。NZ8合金在360℃锂水中腐蚀98d后所得氧化膜/金属界面处四方氧化锆含量较其在400℃蒸汽中腐蚀70d所得氧化膜/金属界面处四方氧化锆含量高,而且在400℃蒸汽中腐蚀后氧化膜外表面没有四方氧化锆形成。四方氧化锆向单斜氧化锆的转变决定了NZ8合金的耐腐蚀性能。氧化膜中四方氧化锆含量越高,则锆合金的耐腐蚀性能越好。章海霞 许并社 李中奎 Fruchart Daniel Hlil Ei Kébir 周廉 2012稀有金属材料与工程2012,41,5:5
2Phylogenetically Distinct Cellulose Synthase Genes Support Secondary Wall Thickening in Arabidopsis Shoot Trichomes and Cotton Fiber显示文摘Through exploring potential analogies between cotton seed trichomes (or cotton fiber) and arabidopsis shoot trichomes we discovered that CesAs from either the primary or secondary wall phylogenetic clades can support secondary wall thickening. CesA genes that typically support primary wall synthesis, AtCesA1,2,3,5, and 6, underpin expansion and secondary wall thickening of arabidopsis shoot trichomes. In contrast, apparent orthologs of CesA genes that support secondary wall synthesis in arabidopsis xylem, AtCesA4,7, and 8, are up-regulated for cotton fiber secondary wall deposition. These conclusions arose from: (a) analyzing the expression of CesA genes in arabidopsis shoot trichomes; (b) observing birefringent secondary walls in arabidopsis shoot trichomes with mutations in AtCesA4, 7, or 8; (c) assaying up-regulated genes during different stages of cotton fiber development; and (d) comparing genes that were co-expressed with primary or secondary wall CesAs in arabidopsis with genes upregulated in arabidopsis trichomes, arabidopsis secondary xylem, or cotton fiber during primary or secondary wall deposition. Cumulatively, the data show that: (a) the xylem of arabidopsis provides the best model for secondary wall cellulose synthesis in cotton fiber; and (b) CesA genes within a 'cell wall toolbox' are used in diverse ways for the construction of particular specialized cell walls.Lissete Betancur Bir Singh Ryan A.Rapp Jonathan F.Wendel M. David Marks Alison W.Roberts Candace H.Haigler 2010Journal of Integrative Plant Biology2010,52,2:4
3基于关联规则进行词对齐的跨领域情感分类算法(英文)显示文摘文本情感分类被应用于企业用户管理系统,通过自动对诸如评论、博客等带有情感倾向性文字进行分析,帮助商家更好地了解用户对商品或者服务的态度。然而,评论和博客等内容常源于不同应用领域,为每个领域训练一个能准确预测情感倾向的分类器非常困难。主要原因是,在不同领域,人们通常会用不同特征词表达相同情感,并且难以找到一个直接的映射函数,以建立不同领域特征词间的映射关系,从而消除领域间差异。因此,将某个领域训练好的分类器直接应用到另一个领域时,会因为领域间差异使得分类器准确率急速下降。本文提出一个新的基于关联规则进行特征词对齐的跨领域情感分类算法,该算法通过在同一领域中挖掘具有强关联关系的领域共享词和领域专有词词对,建立直接映射关系,并以领域共享词为桥梁,在不同领域的特征专有词之间建立间接映射关系,从而在一定程度上消除了源领域和目标领域之间的差异,有效提升了跨领域情感分类准确率。在亚马逊数据库上的实验结果证明该算法提高了跨领域情感分类性能。Xi-bin JIA Ya JIN Ning LI Xing SU Barry CARDIFF Bir BHANU 2018Frontiers of Information Technology & Electronic Engineering2018,19,2:4
4Crystallographically Selective Nanopatterning of Graphene on SiO_(2)显示文摘Graphene has many advantageous properties,but its lack of an electronic band gap makes this two-dimensional material impractical for many nanoelectronic applications,for example,field-effect transistors.This problem can be circumvented by opening up a confinement-induced gap,through the patterning of graphene into ribbons having widths of a few nanometres.The electronic properties of such ribbons depend on both their size and the crystallographic orientation of the ribbon edges.Therefore,etching processes that are able to differentiate between the zigzag and armchair type edge terminations of graphene are highly sought after.In this contribution we show that such an anisotropic,dry etching reaction is possible and we use it to obtain graphene ribbons with zigzag edges.We demonstrate that the starting positions for the carbon removal reaction can be tailored at will with precision.Péter Nemes-Incze Gábor Magda Katalin Kamarás LászlóPéter Biró 2010Nano Research2010,3,2:4
5Investigation of HER-2 codon 655 single nucleotide polymorphism frequency and c-ErbB-2 protein expression alterations in gastric cancer patients显示文摘瞄准:为了两个都调查胃的癌症的风险是否与 Ile/Val 被联系,挑选人的表皮的生长因素 receptor-2 (HER-2 ) 的核苷酸多型性(SNP ) 在 655 上的鳕鱼和在在一个土耳其语的病人的胃的癌症案例中的 HER-2 表示的建议存在的编码域的区域组织的 transmembrane。方法:限制跟随的聚合酶链反应(PCR ) 碎裂长度多型性(RFLP ) 策略被用来在 655 上在鳕鱼分析 HER-2 SNP 的存在。c-erbB-2 表示模式被免疫组织化学分析。结果在胃的癌组和长期的胃炎组之间,以及在 clinicopathological 参数和癌之间被比较。结果:结果证明 Ile/Val 遗传型在长期的胃炎组在土耳其语的胃的癌组,和没有以内占了 20% ,并且这 genotyping 与阶段 IV 胃的癌症(P=0.04 ) 被联系。在另一方面,积极膜的 HER-2 免疫反应从长期的胃炎盒子在土耳其语的胃的癌组和没有以内占了 24% ;进一步,它与肠的类型癌(P=0.007 ) 被相关,并且上演 III-IV 癌(P=0.004 ) 。结论:这些观察暗示测试 HER-2 SNP 可以参予胃的癌症的发展和前进。在与大样品组一起证实这些结果以后,因此,在表示上的 655 SNP 或 c-erbB-2 上的 HER-2 鳕鱼可以也为胃的癌被用作差的预示的指示物。N Lale Satiroglu-Tufan Ferda Bir Nese Calli-Demirkan 2006World Journal of Gastroenterology2006,12,20:4
6Biochar can Increase Chinese Cabbage(Brassica oleracea L.)Yield,Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil显示文摘There are few evidences on the effect of biochar on vegetable yield,nitrogen(N)and phosphorus(P)leaching losses under intensive vegetable production soil.The current field plot scale study evaluated responses of Chinese cabbage(Brassica oleracea L.)yield,N and P leaching losses using five N treatments of common N application rate according to local farmers’practice(N100%),reducing 20%or 40%N fertilizer(N80%and N60%),and reducing 40%N fertilizer but incorporating 10 or 20 t/ha biochar(N60%+BC10 and N60%+BC20).Results showed that N80%and N60%decreased both the cabbage economic and leaf yields by 6.8%-36.3%and 27.4%-37.7%,respectively.Incorporation of biochar with reduced N fertilizer rates improved the cabbage yield,in particular the N60%+BC20 matched the yield that observed in N100%treatment.Enhanced N and P uptake capacities of cabbage shoot probably contributed the higher vegetable production under both biochar amendment schemes.Biochar application mitigated the NH_(4)^(+)-N and total P leaching losses by 20%-30%and 29%-32%,respectively,compared with their counterpart treatment N60%.Nevertheless,biochar exerted no influence on the NO_(3)^(-)-N leaching.In addition,soil organic matter content was recorded with 7.4%-28.7%higher following 10-20 t/ha biochar application.In conclusion,biochar application can increase economic yield of cabbage via increasing N and P use efficiency,decrease N and P leaching losses,and improve soil quality in an intensive vegetable production system.Haijun Sun Paramsothy Jeyakumar Hongdong Xiao Xuewen Li Jiayou Liu Min Yu Prabal Bir Jung Rana Weiming Shi 2022Phyton-International Journal of Experimental Botany2022,91,1:3
7Surgical stress and cytoskeletal changes in lens epithelial cells following manual and femtosecond laser-assisted capsulotomy显示文摘AIM:To study the effect of mechanical stress on the cytoskeleton in lens epithelial cells following conventional phacoemulsification surgery(CPS)and femtosecond laserassisted cataract surgery(FLACS).METHODS:The cytoskeleton of the epithelial cells of the anterior lens capsules(ALC)removed by CPS and FLACS was examined by immunohistochemistry.Expression of the intermediate filament,glial fibrillary acidic protein(GFAP),and glutamine synthetase(GS)immunoreactivity were detected.In order to map the actin network of cells,fluorescently labeled phalloidin was used.The samples were examined using confocal laser scanning microscopy.RESULTS:GFAP expression was visible in a larger number of the epithelial cells after CPS compared to FLACS.In CPS sample’s epithelial cells,GFAP immunoreactivity indicated robust morphological change.Regarding the actin filaments,the presence of tubular elements connecting epithelial cells,regular actin pattern and marked cortical network after CPS were found.Following FLACS,the actin cytoskeleton of the epithelial cells remained densely structured,and the tubular elements were undetectable,however,the above-mentioned regular actin pattern and the marked cortical network were visible.CONCLUSION:The conventional removal of the ALC induces more robust changes of the cytoskeleton of the lens epithelial cells.ANDrea Krisztina Sükosd Krisztina Szabadfi Edina Szabó-Meleg Beáta Gáspár Pavel Stodulka Gyorgy SétálóJr Róbert Gábriel Miklós Nyitrai Zsolt Biró Hajnalka Abrahám 2020International Journal of Ophthalmology(English edition)2020,13,6:2
8Gabor wavelet representation for 3-D object recognition显示文摘Xing Wu Bir Bhanu 1997IEEE Transactions on Image1997,6,1:2
9Apoptotic cell death and its relationship to gastric carcinogenesis显示文摘AIM: To investigate the apoptotic process of cells with in the intestinal metaplasia areas co-localizing with chronic gastritis and gastric carcinomas and to analyze the involvement of proteins regulating apoptosis in the process of intestinal metaplasia related gastric carcinogenesis. METHODS: Forty-two gastric carcinoma and seventeen chronic gastritis cases were included in this study. All cases were examined for the existence of intestinal metaplasia. Ten cases randomly selected from each group were processed for TUNEL assay. TUNEL positive cells within the intestinal metaplasia areas, co-localizing either to gastric carcinoma or chronic gastritis, were counted and converted to apoptotic indices. In addition, p53, bcl-2 and bax expression patterns within these tissues were analyzed on the basis of immunohistochemistry. RESULTS: Twenty-eight of the cases were intestinal and 14 of the cases were diffuse type adenocarcinomas. 64% (27/42) of the gastric carcinoma cases had intestinal metaplasia. Intestinal metaplasia co-localized more with intestinal type carcinomas compared with diffuse type carcinomas [75% (21/28) vs 42% (6/14), respectively; P ≤0.05]. The mean apoptotic index in tumor cells was 0.70±0.08. The mean apoptotic index in intestinal metaplasias co-localizing to tumors was significantly higher than that of intestinal metaplasias co-localizing to chronic gastritis (0.70±0.03 vs 0.09±0.01, respectively; P≤0.05). p53 positivity was not observed in areas of intestinal metaplasia adjacent to tumors or chronic gastritis. Intestinal metaplasia areas adjacent to tumors showed lower cytoplasmic bcl-2 positivity compared to intestinal metaplasia areas adjacent to chronic gastritis [55.5% (15/27) vs 70.5% (12/17), respectively]. On the other hand, intestinal metaplasia areas adjacent to tumors showed significantly higher cytoplasmic bax positivity compared to intestinal metaplasia areas adjacent to chronic gastritis [44.4% (12/27) vs 11.7% (2/17), respectively; P ≤0.05]. CONCLUSION: Existence of apoptotic cells on the basis of TUNEL positivity is shown in intestinal metaplasias co-localizing to both diffuse and intestinal type gastric cancers in this study. Our results also suggested bax expression dependent induction of apoptosis especially in intestinal metaplasia areas adjacent to tumors. These findings strongly support the involvement of apoptotic mechanisms in the process of gastric carcinogenesis especially in the transition from intestinal metaplasia to gastric cancer. It may be suggested that induction of apoptosis in intestinal metaplasia areas adjacent to tumors may involve different mechanisms than induction by chronic inflammation.Ferda Bir Nese Calli-Demirkan A Cevik Tufan Metin Akbulut N Lale Satiroglu-Tufan 2007World Journal of Gastroenterology2007,13,23:2
10Adaptive image segmentation using a genetic algorithm 显示文摘Bir Bhanu Sungkee Lee John Ming 1995IEEE Tran SMC1995,25,12:1
11Development of a symptom specific health status measure for patients with chronic cough: Leicester Cough Questionnaire (LCQ) 显示文摘Birring SS Prndon B Carr AJ 2003Thorax2003,58,4:1
12Hydrogen sulfide chemical biology: pathophysiological roles and detection 显示文摘Kolluru GK Shen X Bir SC 2013Nitric Oxide2013,30,35:1
13Detection of cough signals in continuous audio recordings using hidden Markov models 显示文摘MATOSS BIRRING S S PAVORD I D 2006IEEE Trans Biomed Eng2006,53,6:1
14Feature fusion of side face and gait for video-based human identification 显示文摘Zhou Xiaoli Bhanu Bir 2008Pattern Recognition2008,41,3:1
15An Automated System for 24-h Monitoring of Cough Frequency: The Leicester Cough Monitor显示文摘Matos S Birring S S Pavord I D 2007IEEE Transactions on Biomedical Engineering2007,54,8:1
16Development of a symptom specific health status measure for patients with chronic cough: Leicester Cough Questionnaire ( LCQ ) 显示文摘Birring SS Prudon B Cart A J 2003Thorax2003,,58:1
17Deep brain stimulation of the pedunculopontine nucleus in a patient with freezing of gait 显示文摘Acar F Acar G Bir LS 2011Stereotact Funct Neurosurg2011,89,4:1
18Fondaparinux for preventiou of venous thromboembolism in high-risk trauma patients: a pilot study 显示文摘Lu JP Knudson MM Bir N 2009J Am Coll Surg2009,209,5:1
19Hydrogen sulfide chemical biology: pathophysiological roles and detection 显示文摘Kolluru G K Shen X Bir S C 2013Nitric Oxide2013,35,:1
20Development of a symptom specific health status measure for patients with chronic cough:leicester cough questionnaire(LCQ)显示文摘Birring S S Prudon B Carr A J 2003Thorax2003,58,:1
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